About a Stromanthe Plant
A Stromanthe sanguinea “Tricolor” (sometimes referred to a Stromanthe “Triostar”) is native to the rain forests of Brazil where the plant grows as tall as 5ft (1.5m) and as wide as 3′ (.9m) and has leaves 20” (50cm) long and 6” (15.2 cm) wide. The Stromanthe is a close relative of the Prayer plant and the Ctenanthe and is a member of the Marantaceae family. Although a Stromanthe plant can be grown indoors or outdoors, it won’t survive a freeze and prefers temperatures above 60°F (15.6°C). Like a Prayer plant, the leaves of a Stromanthe fold up at night as though praying. and open the next morning.
Stromanthe Plant Description
As a houseplant, the upright Stromanthe is usually about 2′-3′ (.6m -.9m) tall and produces long, elliptical-shaped, multi-colored, glossy leaves about 6″-12″ (15.2cm -30.5cm) long. The topside of the leaves are a combination of green, cream, white, and pink. No matter what the variety, the underside of the leaves is always a vibrant pinkish-red- color. The leaves of a Stromanthe lean in the direction of the light source as it moves across a room throughout the day. Once night arrives and it’s dark, the leaves fold up and open again as the light returns the next morning. When grown indoors, a Stromanthe may produce tiny white flowers surrounded by bright red bracts during late winter or early spring. The flowers are only about ½” (1.2cm) but the bracts surrounding them can be 2”-3” (5cm-7.5cm) wide. The flowers can’t compete with the plants’ beautiful leaves.
Tricolor Stromanthe (Stromanthe sanguinea) is the most popular variety sold. The top side of the oval – shaped leaf is a mixture of patches of dark and light green, cream, white, and pink. The underside of the leaf is a vibrant shade of pinkish burgundy.
Stromanthe Magic Star has leaves that are narrower and less colorful that the Tricolor Stromanthe. The topside of the leaf is bright green with streaks and dots of white and cream. The underside of the leaf is a deep red.
Stromanthe amabilis has greenish-grey leaves with dark green streaks
Stromanthe “Charlie” has medium green leaves with wide and narrow streaks of dark green and white.
Green Stromanthe (Stromanthe sanguinea “Green”) is just green, the leaves have no other colors. The leaves do have a nice shine to them and a large light green middle rib.
Quick Care Tips
Bright, indirect light
Keep soil barely moist but never allow the plant to sit in water
Feed every two weeks from May to September
Grows best in high humidity and warm temoeratures
A Stromanthe plant is a spectacular looking plant, but challenging to grow, definitely not for beginners. It is a non- poisonousPlants are a great addition to homes and offices, but it’s important to know whether your plants are dangerous to children, pets, or even adults. Some plants contain chemicals such as oxalates, solanine, glycosides, or alkaloid lycorine that may cause vomiting, nausea, diarrhea, swelling and redness of the mouth, throat, and lips, and trouble breathing. Touching parts of certain plants, especially the sap, may cause various skin irritations. The weight and age of the human or pet involved, and the part and amount of plant eaten determine how severe the reaction to the toxins will be. Although plants may be listed as non-toxic, they can still cause individual allergic reactions. If there is any question after a houseplant has been ingested or touched, immediately call the Poison Control Center 1-800-222-1222. More poisonous houseplant information and pictures of common plants that are dangerous to children and pets can be found in my book Don’t Feed Me to Your Cat: A Guide to Poisonous Houseplants plant and safe to have around dogs, cats, and small children.
A Stromanthe would love to spend the summer on your porch, but be sure it’s in the shade and not getting any direct sun. Bring it back inside before there is a chance of a hard frost.
The humidity loving Stromanthe will thrive in a terrarium. The only problem may be that is will get too large. These plants can get to be 2-3 feet in the right conditions.
I think you have a couple of things going on. First of all, a Stromanthe should never get direct sun, it causes the color in the leaves to fade. bright indirect light from a north or east facing window is best. Another think Stromanthes don’t like is being in a draft. I’d move it off the window sill incase there is some cold air coming in at night.